"Additional Skill System to be overhauled, with skills shared by roles instead of jobs, and can choose from shared role ability options"

Chances are there will be new skills within that pool to choose from. So stuff like provoke, swift cast, etc, potentially renamed if they were from other roles. One can only hope that they do away with classes entirely and just go straight jobs for everything (yes smns and schs, you should level seperately!).